Improvement in car pivot-supports



A. BLOOD.

C'AR PIVOT SUPPORT. N0.174=-,614. Patented March 14, 1876..

NPETERS, PNOYO-LDTNOGFIRPHER, WASHINGTON. D C.

UNITED STATES,

PATENT OFFICE,

ARETAS BLOOD, OF MANCHESTER, NEW HAMPSHIRE.

IMPROVEMENT lN CAR PIVOT-SUPPbRTS.

Specification forming part of Letters Patent No. 174,614, dated March 14, 1876; application filed I Qctober 28, 1875.

To all whom it may concern Be it known that I, ARETAS BLOOD, of Manchester, of the county of Hillsborough, of the State of New Hampshire, have invented a new and useful Improvement in Railway- Garriage Pivot-Supports; apd do hereby declare the same to be fully described in the following specification, and represented in the accompanying drawings, of which Figure l is a top view, Fig. 2 a side elevation, Fig. 3 a transverse section, and Fig. 4 a longitudinal section, of one of my-improved supports, which is specially intended for sustaining the pivot of a locomotiveengine boiler and parts adjacent, but which may also be employed for the pivot of a" common long passen ger or freight car. 7 1

In making my invention, I have sought to avoid the use of links or hangers, as heretofore employed in most, if not all, railway-car or engine-boiler pivot-supports, they. being liable to become broken, and, in swaying, to raise the carriage-body more or less, and thus increase the danger of accident.

My invention consists in an improved railway-carriage pivot-supporter, it consisting of a base provided with a slot and two parallel guides,-and of friction-rollers, and their pivotal bearing, provided with elongated recesses forreception of the said rollers, and for keeping them from escaping between the adjacent surfaces.

In the drawings, A denotes the slotted base, which is a rectangular plate of metal, having in its middle a slot, a, to extend longitudinally within the said plate. Besides the slot, the

'0 0, all being as shown.

plate has two parallel ledges or guides, b I), raised on its upper surface, they-serving to receive between them, and guide rcctilinearly in its movements, the pivotal bearing B formed as represented, and provided on its lower surface with two elongated-notches o r recesses, c c, in which, and between the said bearing and the base A, are placed two friction-rollers, The pivot pin D goes down through the center of the bearing 5 and into the slot a, the said pivot-pin and slot operating to determine the extent of lateral play of the bearing relatively to the base. The said hearing, when in use, can move freely on the friction rollers, whichare kept in their places by the recesses, the base being bolted or fixed upon the carriage-truck at its middle.

I claim as my invention- 1. The described improved railway-carriage pivot-supporter, consisting of the base A provided with the slot a, and parallel guides b b,

and of the friction-rollers O G, and the pivotal bearing B, provided with the elongated recesses c c for reception of the said rollers, all being arranged and to operate substantially -as set forth.

2. The pivotal bearing B, provided with the recesses o 0, having straight bearing-surfaces for the rollers G G to work against, all being as shown and described.

. ARETAS BLOOD. Witnesses:

R. H. EDDY, J. R. SNOW. 

